12 open-source projects share topics or a category with harness-sdk. Each comparison below is drawn from recorded GitHub metadata — language, license, activity and review status. None of them is a judgement about which is better for you.
An open-source long-horizon SuperAgent harness that researches, codes, and creates. With the help of sandboxes, memories, tools, skill, subagents and message gateway, it handles different levels of tasks that could take minutes to hours.
Choose deer-flow if…
MIT License suits your use better than Apache License 2.0
you want the more widely starred option (84.9k)
you specifically need agent or agentic-framework
Shares agentic, ai, ai-agents, harness with harness-sdk.
Compress tool outputs, logs, files, and RAG chunks before they reach the LLM. 20% fewer tokens for coding agents, 60-95% fewer tokens for JSON, same answers. Library, proxy, MCP server.
Choose headroom if…
you want something your agent can install directly rather than a library to wire up yourself
Open-source AI orchestration framework for building context-engineered, production-ready LLM applications. Design modular pipelines and agent workflows with explicit control over retrieval, routing, memory, and generation. Built for scalable agents, RAG, multimodal applications, semantic search, and conversational systems.
Choose haystack if…
you want the more widely starred option (26.9k)
you specifically need agentic-rag or ai-agents
Shares agent-framework, agentic-ai, agents, ai with harness-sdk.
<⚡️> SuperAGI - A dev-first open source autonomous AI agent framework. Enabling developers to build, manage & run useful autonomous agents quickly and reliably.
Choose SuperAGI if…
MIT License suits your use better than Apache License 2.0
you want the more widely starred option (17.7k)
you specifically need agi or artificial-general-intelligence
Shares agents, ai, autonomous-agents, llm with harness-sdk.
No push in over a year ago.MIT LicensePython17.7k+12
Omnigent is an open-source AI agent framework and meta-harness: orchestrate Claude Code, Codex, Cursor, Pi, and custom agents — swap harnesses without rewriting, enforce policies and sandboxing, and collaborate in real time from any device.
Choose omnigent if…
you specifically need agent-governance or agent-orchestration
Shares agent-framework, agents, ai, ai-agents with harness-sdk.
An AI Gateway, registry, and proxy that sits in front of any MCP, A2A, or REST/gRPC APIs, exposing a unified endpoint with centralized discovery, guardrails and management. Optimizes Agent & Tool calling, and supports plugins.
Choose mcp-context-forge if…
you specifically need api-gateway or asyncio
Shares agents, ai, generative-ai, mcp with harness-sdk.
